Don struck me as a good guy. He called me at home one night.
So maybe you could tell us about his course. How much of your trading profited from his teachings? And instead of "I learnt a lot" I prefer here the more numerical "my profits doubled" kind of feedback.

A real life P/L is hard to get from teachers and mentors, but I recall a few years back I did a retake on his numbers and the only thing making him profitable was the really low commissions he paid because he had a seat. This is just an observation, nothing to take away from his teaching ability. But if you learnt everything he does, and you were still paying the average commission, you would still end up in the red...
Because of this I liked more of his philosophical approach to trading and his overall views then the actual trading itself...